Previous year MCQs

General science UPPSC 2007 GS-I
Question

Which of the following tree is suitable to prevent dust pollution?

Answer & Solution

Answer: (Detailed Solution Below)

Option A: Sita Ashok

Detailed Solution:

The correct answer is “Sita Ashok”.
Saraca asoca (Ashoka Tree aka Sita Ashoka Tree) is widely recognised as a remedy for dust pollution in the atmosphere. Be careful not to confuse it with the false Ashoka tree which is a lofty pyramidal symmetrical tree.

Similar Questions:

Match list-I with list-Il and select the correct answer using code given below—
List - I List - II (Diseases) (Factors)

(A) Peptic ulcers - (1) Virus
(B) Dengue - (2) Protozoa
(C) Elephant Foot - (3) Worm
(D) Malaria - (4) Bacteria
Code -
  1. A) A-(4), B-(2), C-(3), D-(1.)
  2. B) A-(4), B-(1), C-(3), D-(2)
  3. C) A-(4), B-(1), C-(2), D-(3)
  4. D) A-(1), B-(4), C-(3), D-(2)
Among the following greenhouse gases, which does not cause ozone pollution in troposphere?
  1. A) Methane
  2. B) Carbon mono-oxide
  3. C) Nitrogen oxides (NOX)
  4. D) Water vapours
In which part of the body bile is synthesized?
  1. A) Liver
  2. B) Spleen
  3. C) Gall bladder
  4. D) Pancreas
Which among the following compounds is the main constituent of natural gas ?
  1. A) Butane
  2. B) Hexane
  3. C) Benzene
  4. D) Methane
Which one of the following is a water borne disease?
  1. A) Small pox
  2. B) Malaria
  3. C) Cholera
  4. D) Tuberculosis
Which acid is used in photography:
  1. A) Formic acid
  2. B) Oxalic acid
  3. C) Citric acid
  4. D) Acetic acid
What is the function of the thermostat in a refrigerator?
  1. A) To lower the temperature
  2. B) To increase the freezing point
  3. C) To maintain constant temperature
  4. D) To decrease the melting point
Who said that "Every attack on my back bone would prove to be a nail in the shroud of the British Empire."?
  1. A) Lala Lajpat Rai
  2. B) Bhagat Singh
  3. C) Chandrasekhar Azad
  4. D) Bal Gangadhar Tilak
At which temperature superconductivity can be of tremendous economic interest saving billions of rupees?
  1. A) At very low temperature
  2. B) At a temperature when semiconductor becomes a superconductor
  3. C) At room temperature
  4. D) At a very high temperature
'Big-bang theory' explains the origin of
  1. A) Mammals
  2. B) Ice age
  3. C) Universe
  4. D) Ocean
It is comfortable to wear white clothes in summer because:
  1. A) They Reflect all the heat that is falling it
  2. B) Disfigure all the heat transmitted in the body
  3. C) They absorb sweat
  4. D) They provide coolness to the eyes
On which of the following dates your shadow at noon is the smallest?
  1. A) December 25
  2. B) March 21
  3. C) June 22
  4. D) February 14